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【单选题】
Pete let Jean Grace have the necklace for just a few pennies because ________.A.
Pete had to give a Christmas present to someone
B.
Pete was rich and could afford it
C.
Pete took Jean Grace for his sweetheart who had died years ago
D.
Pete felt that the love in him was aroused and had the urge to love others
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举一反三
【单选题】( )equations are necessary for the solution of the u and I variables associated with a two-terminal elements.
A.
TWO
B.
THREE
C.
FOUR
D.
ONE
【单选题】在Na 2 O和Na 2 O 2 晶体中，阴、阳离子的个数比是 [ ]
A.
都是1∶1
B.
都是1∶2
C.
前者是1∶1，后者是1∶2
D.
前者是1∶2，后者是1∶1
【简答题】加压溶气气浮的三种基本流程：全加压溶气气浮流程、部分加压溶气气浮流程、（）。
【单选题】The three scalar equations, , are ____ equations of equilibrium in two dimensions.
A.
Incorrect
B.
The only correct
C.
The most commonly used
D.
Not sufficient
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